谁能帮我写篇英语作文,80到100字左右.bad manner in public

We know that many people in public places have very rude behavior.Such as spitting,smoking and so on.A public place is not your place,our behavior should be constrained.So,what can we do it?
First of all,I think must start with ourselves.If everyone well,that constrain their behavior,improve their training,can also play some of the advertised role.We must always remind ourselves,in the subconscious mind on the code of conduct in public places.
Second,we may post some of the cues.Such as still smoking,do not spit,do not riding lawn.
Impolite always distasteful,annoying.For themselves,for others,we should try to discipline themselves to improve their ability to control and good behavior.We need to refuel.